Multi-Layer Polymeric Vessel Insulation and Strength
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Solution Overview
Problem
Conventional vessels made from polymeric materials lack sufficient insulation and mechanical strength, particularly in maintaining the integrity of beverages or food items under varying conditions, such as temperature and physical stress.
Innovation Solution
A vessel manufactured using a multi-layer tube structure comprising an inner polymeric layer, a middle insulative cellular non-aromatic polymeric layer, and an outer polymeric layer, where the middle layer provides insulation and mechanical support, and the entire structure is optimized for enhanced compressive and shear strength while minimizing weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single-layer polymeric structure is used, then the vessel is simple to manufacture, but it lacks sufficient insulation and mechanical strength
Solution Approach 1:
The patent employs a multi-layer composite structure consisting of an inner polymeric layer, a middle cellular insulative layer, and an outer polymeric layer. This composite construction provides enhanced compressive strength and thermal insulation while maintaining manufacturing efficiency through integrated co-extrusion and blow-molding processes.
Solution Approach 2:
The vessel wall is segmented into three distinct functional layers: the inner layer provides structural integrity and product contact, the middle cellular layer provides insulation and additional strength, and the outer layer provides structural support and aesthetic finish. Each layer performs its specific function optimally.
2Weight of moving object
If a single-layer polymeric structure is used, then the vessel has lower weight, but it lacks sufficient insulation performance
Solution Approach 1:
The middle layer utilizes a cellular or foamed polymeric structure with controlled porosity. This cellular configuration provides superior thermal insulation performance while maintaining low density and minimal weight addition. The air pockets within the cellular structure act as thermal barriers.
Solution Approach 2:
The multi-layer composite construction combines materials with different thermal properties. The cellular middle layer specifically addresses thermal insulation needs without significantly increasing overall vessel weight, as it provides high insulation value per unit weight.
3Weight of moving object
If conventional polymeric materials are used, then the vessel is lightweight, but it lacks sufficient mechanical strength under physical stress
Solution Approach 1:
The multi-layer composite structure combines lightweight polymeric materials with a cellular reinforcement layer. The inner and outer solid polymeric layers provide structural integrity and resistance to physical stress, while the middle cellular layer provides additional strength without significant weight penalty.
Solution Approach 2:
Different regions of the vessel wall have different structural qualities optimized for their specific functions. The inner and outer layers have higher material density for structural strength, while the middle layer has lower density for insulation. This local differentiation of material properties optimizes both weight and strength.
4Strength
If a multi-layer structure is implemented, then compressive strength is enhanced, but the manufacturing process becomes more complex
Solution Approach 1:
The patent combines multiple manufacturing operations into an integrated process. The multi-layer structure is formed through co-extrusion of multiple polymer layers followed by blow-molding in a single continuous operation, eliminating the need for separate assembly steps and reducing manufacturing complexity despite the multi-layer structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The multi-layer vessel design significantly enhances compressive strength and shear resistance, offering improved performance in top-load testing and side-wall rigidity, while maintaining a lightweight and sustainable construction.
Implementation Method 1
a middle insulative cellular non-aromatic polymeric layer therebetween
Data Source
AI summary
A vessel is configured to hold a product in an interior region formed in the vessel. In illustrative embodiments, the vessel includes a floor and a sidewall coupled to the floor to extend away from the floor. Together the floor and sidewall cooperate to define the interior region.